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>> No sex or safe sex for eight weeks, that's what the World's Health Organization recommends for people returning from areas hit by the Zika virus. The recommendation released on Tuesday is twice as long as its previous abstinence period, Reuter's health reporter, Bill Burkkrat.>> These recommendations is just how seriously they are taking this.

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It's not so much based on scientific knowledge, that's really based on cautionary guesswork, from what we know. What we really need is a much longer term studies that will really tell us what the outer limits are of the risk of sexual transmission of Zika virus.>> On Saturday though the WHO rejected the call of the Rio Olympic games to be moved or postponed.

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150 leading health experts said it would be unethical for the games to go ahead as scheduled given the high risk of infection from the Zika virus to nearly 500.000 tourists who are expected to attend.>> The United States Olympic Committee is giving out far greater number of condoms to athletes and delegations going there.

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To minimize the risk to the extent they can because these are healthy people of child-bearing age. And then the real risk, the greatest risk is to pregnant women and then the babies that can be born with these horrible birth defects.>> The mosquito-borne Zika virus has been shown to cause microcephaly in babies, which results in small heads and developmental problems.